OUTLAW EAGLE MANUFACTURING

boosted · Joined: 04 Jun 2009 Posts: 378

Just thought I would throw a little of what the people who have been telling me about spark plug usage that I thought I understood but apparantly did not know enough.
One of the problems that the ct525's might run into during a endurance race situation is overheating of the sparkplug due to the inccorrect heat range being used. What they come with is a ac delco 41-110. That crosses over to NGK tr55ix. That is almost the hottest plug that NGK makes. No matter what your timing is that plug can glow hot enough to cause preignition and detonation. as we all know the ct525 does not go down quietly and usually yard sales all over the boat making it very difficult to figure out what actually happened. Finding plugs that are the colder for that engine is not real easy but NGK has a tr7ix that seems fairly available. I am still searching for something better but have not had any luck yet. Again this is just my opinion and in the hopes that it can help somone who might have a engine failure not have one. If anyone else has an opinion or knowledge please chime in.

Mark

boosted · Joined: 04 Jun 2009 Posts: 378

A little more info. these are from a non blown up ct525. Notice the black specs on the porcelin. second pic notice the threads are black for over three turns on the plug. This showing that the heat range is to high and that the engine has been detonating lightly. In the sunlight you can see small bits of alum on the plug from the piston. There is more info on that plug but you get the jist of it.

Wocket16 · Joined: 11 May 2010 Posts: 45

All I can say is wow and am going to follow this closely. Not that I have a CT525, but am interested in how they can be made to work in a race boat.
Good info!

snoflake · Joined: 10 Jul 2012 Posts: 18 Location: Red Deer

It seems like something has changed in the past year with these engines. the first one I had came with the race boat I bought. it had over 40hrs on it and ran strong. I decided to change it out due to the amount of hrs. My next motor only made 5hrs and spun a bearing. As for the CX boats right now, I think the only boat that has not piled a motor up has 3 race seasons on it.

Arthur · Posted: Fri Aug 30, 2013 11:10 am Post subject:

Off the top of my head

Rick Serhan
Mike Hudon
Darren Cage
Ken Travis
Jeremy Hand
Trapper Woolsey...might have got his going again tho?
Steed boys

I'm not CX or LSX Mark, but I really appreciate the input you give to make this sport less expensive and more reliable.

j-roc · Joined: 26 Feb 2011 Posts: 53

Great info mark! Thank you!

We got trap running for Sunday in Whitecourt, and everyone else seems to be running well.

And wow, do they ever yard sale into the boat when they go.....

MISSBHAVEN · Posted: Mon Sep 02, 2013 1:02 pm Post subject:

99% of all CT 525 engine failures can be traced back to an overly aggressive tune, poor quality fuel or some sort of "Crew" related error. The new LSX454 looks like another incredibly durable engine package if tuned properly. I'm very excited and looking forward to racing it next year in the already existing "A" Class.

eddie · Joined: 15 Oct 2007 Posts: 15 Location: NZ

You could also look at changing the rules to allow for the colder plugs as that's what a lot of people do, regardless of the class.

MISSBHAVEN · Posted: Mon Sep 02, 2013 9:06 pm Post subject:

eddie · Joined: 15 Oct 2007 Posts: 15 Location: NZ